-11.66% is the change from 566 to 500
Calculation steps:
[( 500 - 566 ) ÷ 566] x 100 = -11.66%
Formula
Percentage change = [(500 - 566) / 566] x 100
Subtract the new number by the original number
500 - 566 = -66
-66 ÷ 566 = -0.1166077738515901
-0.1166077738515901 x 100 = -11.66%